/**
 * @license Highcharts JS v7.2.0 (2019-09-03)
 *
 * Module for adding patterns and images as point fills.
 *
 * (c) 2010-2019 Highsoft AS
 * Author: Torstein Hønsi, Øystein Moseng
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
    if (typeof module === 'object' && module.exports) {
        factory['default'] = factory;
        module.exports = factory;
    } else if (typeof define === 'function' && define.amd) {
        define('highcharts/modules/pattern-fill', ['highcharts'], function (Highcharts) {
            factory(Highcharts);
            factory.Highcharts = Highcharts;
            return factory;
        });
    } else {
        factory(typeof Highcharts !== 'undefined' ? Highcharts : undefined);
    }
}(function (Highcharts) {
    var _modules = Highcharts ? Highcharts._modules : {};
    function _registerModule(obj, path, args, fn) {
        if (!obj.hasOwnProperty(path)) {
            obj[path] = fn.apply(null, args);
        }
    }
    _registerModule(_modules, 'modules/pattern-fill.src.js', [_modules['parts/Globals.js'], _modules['parts/Utilities.js']], function (H, U) {
        /* *
         * Module for using patterns or images as point fills.
         *
         * (c) 2010-2019 Highsoft AS
         * Author: Torstein Hønsi, Øystein Moseng
         *
         * License: www.highcharts.com/license
         */

        /**
         * Pattern options
         *
         * @interface Highcharts.PatternOptionsObject
         *//**
         * URL to an image to use as the pattern.
         * @name Highcharts.PatternOptionsObject#image
         * @type {string}
         *//**
         * Width of the pattern. For images this is automatically set to the width of
         * the element bounding box if not supplied. For non-image patterns the default
         * is 32px. Note that automatic resizing of image patterns to fill a bounding
         * box dynamically is only supported for patterns with an automatically
         * calculated ID.
         * @name Highcharts.PatternOptionsObject#width
         * @type {number}
         *//**
         * Analogous to pattern.width.
         * @name Highcharts.PatternOptionsObject#height
         * @type {number}
         *//**
         * For automatically calculated width and height on images, it is possible to
         * set an aspect ratio. The image will be zoomed to fill the bounding box,
         * maintaining the aspect ratio defined.
         * @name Highcharts.PatternOptionsObject#aspectRatio
         * @type {number}
         *//**
         * Horizontal offset of the pattern. Defaults to 0.
         * @name Highcharts.PatternOptionsObject#x
         * @type {number|undefined}
         *//**
         * Vertical offset of the pattern. Defaults to 0.
         * @name Highcharts.PatternOptionsObject#y
         * @type {number|undefined}
         *//**
         * Either an SVG path as string, or an object. As an object, supply the path
         * string in the `path.d` property. Other supported properties are standard SVG
         * attributes like `path.stroke` and `path.fill`. If a path is supplied for the
         * pattern, the `image` property is ignored.
         * @name Highcharts.PatternOptionsObject#path
         * @type {string|Highcharts.SVGAttributes}
         *//**
         * Pattern color, used as default path stroke.
         * @name Highcharts.PatternOptionsObject#color
         * @type {Highcharts.ColorString}
         *//**
         * Opacity of the pattern as a float value from 0 to 1.
         * @name Highcharts.PatternOptionsObject#opacity
         * @type {number}
         *//**
         * ID to assign to the pattern. This is automatically computed if not added, and
         * identical patterns are reused. To refer to an existing pattern for a
         * Highcharts color, use `color: "url(#pattern-id)"`.
         * @name Highcharts.PatternOptionsObject#id
         * @type {string}
         */

        /**
         * Holds a pattern definition.
         *
         * @sample highcharts/series/pattern-fill-area/
         *         Define a custom path pattern
         * @sample highcharts/series/pattern-fill-pie/
         *         Default patterns and a custom image pattern
         * @sample maps/demo/pattern-fill-map/
         *         Custom images on map
         *
         * @example
         * // Pattern used as a color option
         * color: {
         *     pattern: {
         *            path: {
         *                 d: 'M 3 3 L 8 3 L 8 8 Z',
         *                fill: '#102045'
         *            },
         *            width: 12,
         *            height: 12,
         *            color: '#907000',
         *            opacity: 0.5
         *     }
         * }
         *
         * @interface Highcharts.PatternObject
         *//**
         * Pattern options
         * @name Highcharts.PatternObject#pattern
         * @type {Highcharts.PatternOptionsObject}
         *//**
         * Animation options for the image pattern loading.
         * @name Highcharts.PatternObject#animation
         * @type {boolean|Highcharts.AnimationOptionsObject|undefined}
         */



        var erase = U.erase;

        var addEvent = H.addEvent,
            wrap = H.wrap,
            merge = H.merge,
            pick = H.pick;


        /**
         * Utility function to compute a hash value from an object. Modified Java
         * String.hashCode implementation in JS. Use the preSeed parameter to add an
         * additional seeding step.
         *
         * @private
         * @function hashFromObject
         *
         * @param {object} obj
         *        The javascript object to compute the hash from.
         *
         * @param {boolean} [preSeed=false]
         *        Add an optional preSeed stage.
         *
         * @return {string}
         *         The computed hash.
         */
        function hashFromObject(obj, preSeed) {
            var str = JSON.stringify(obj),
                strLen = str.length || 0,
                hash = 0,
                i = 0,
                char,
                seedStep;

            if (preSeed) {
                seedStep = Math.max(Math.floor(strLen / 500), 1);
                for (var a = 0; a < strLen; a += seedStep) {
                    hash += str.charCodeAt(a);
                }
                hash = hash & hash;
            }

            for (; i < strLen; ++i) {
                char = str.charCodeAt(i);
                hash = ((hash << 5) - hash) + char;
                hash = hash & hash;
            }

            return hash.toString(16).replace('-', '1');
        }


        /**
         * Set dimensions on pattern from point. This function will set internal
         * pattern._width/_height properties if width and height are not both already
         * set. We only do this on image patterns. The _width/_height properties are set
         * to the size of the bounding box of the point, optionally taking aspect ratio
         * into account. If only one of width or height are supplied as options, the
         * undefined option is calculated as above.
         *
         * @private
         * @function Highcharts.Point#calculatePatternDimensions
         *
         * @param {Highcharts.PatternObject} pattern
         *        The pattern to set dimensions on.
         */
        H.Point.prototype.calculatePatternDimensions = function (pattern) {
            if (pattern.width && pattern.height) {
                return;
            }

            var bBox = this.graphic && (
                    this.graphic.getBBox &&
                    this.graphic.getBBox(true) ||
                    this.graphic.element &&
                    this.graphic.element.getBBox()
                ) || {},
                shapeArgs = this.shapeArgs;

            // Prefer using shapeArgs, as it is animation agnostic
            if (shapeArgs) {
                bBox.width = shapeArgs.width || bBox.width;
                bBox.height = shapeArgs.height || bBox.height;
                bBox.x = shapeArgs.x || bBox.x;
                bBox.y = shapeArgs.y || bBox.y;
            }

            // For images we stretch to bounding box
            if (pattern.image) {
                // If we do not have a bounding box at this point, simply add a defer
                // key and pick this up in the fillSetter handler, where the bounding
                // box should exist.
                if (!bBox.width || !bBox.height) {
                    pattern._width = 'defer';
                    pattern._height = 'defer';
                    return;
                }

                // Handle aspect ratio filling
                if (pattern.aspectRatio) {
                    bBox.aspectRatio = bBox.width / bBox.height;
                    if (pattern.aspectRatio > bBox.aspectRatio) {
                        // Height of bBox will determine width
                        bBox.aspectWidth = bBox.height * pattern.aspectRatio;
                    } else {
                        // Width of bBox will determine height
                        bBox.aspectHeight = bBox.width / pattern.aspectRatio;
                    }
                }

                // We set the width/height on internal properties to differentiate
                // between the options set by a user and by this function.
                pattern._width = pattern.width ||
                    Math.ceil(bBox.aspectWidth || bBox.width);
                pattern._height = pattern.height ||
                    Math.ceil(bBox.aspectHeight || bBox.height);
            }

            // Set x/y accordingly, centering if using aspect ratio, otherwise adjusting
            // so bounding box corner is 0,0 of pattern.
            if (!pattern.width) {
                pattern._x = pattern.x || 0;
                pattern._x += bBox.x - Math.round(
                    bBox.aspectWidth ?
                        Math.abs(bBox.aspectWidth - bBox.width) / 2 :
                        0
                );
            }
            if (!pattern.height) {
                pattern._y = pattern.y || 0;
                pattern._y += bBox.y - Math.round(
                    bBox.aspectHeight ?
                        Math.abs(bBox.aspectHeight - bBox.height) / 2 :
                        0
                );
            }
        };

        /**
         * Add a pattern to the renderer.
         *
         * @private
         * @function Highcharts.SVGRenderer#addPattern
         *
         * @param {Highcharts.PatternObject} options
         *        The pattern options.
         *
         * @return {Highcharts.SVGElement|undefined}
         *         The added pattern. Undefined if the pattern already exists.
         */
        H.SVGRenderer.prototype.addPattern = function (options, animation) {
            var pattern,
                animate = H.pick(animation, true),
                animationOptions = H.animObject(animate),
                path,
                defaultSize = 32,
                width = options.width || options._width || defaultSize,
                height = options.height || options._height || defaultSize,
                color = options.color || '#343434',
                id = options.id,
                ren = this,
                rect = function (fill) {
                    ren.rect(0, 0, width, height)
                        .attr({
                            fill: fill
                        })
                        .add(pattern);
                },
                attribs;

            if (!id) {
                this.idCounter = this.idCounter || 0;
                id = 'highcharts-pattern-' + (this.chartIndex || 0) + '-' +
                    this.idCounter;
                ++this.idCounter;
            }

            // Do nothing if ID already exists
            this.defIds = this.defIds || [];
            if (this.defIds.indexOf(id) > -1) {
                return;
            }

            // Store ID in list to avoid duplicates
            this.defIds.push(id);

            // Create pattern element
            pattern = this.createElement('pattern').attr({
                id: id,
                patternUnits: 'userSpaceOnUse',
                width: width,
                height: height,
                x: options._x || options.x || 0,
                y: options._y || options.y || 0
            }).add(this.defs);

            // Set id on the SVGRenderer object
            pattern.id = id;

            // Use an SVG path for the pattern
            if (options.path) {
                path = options.path;

                // The background
                if (path.fill) {
                    rect(path.fill);
                }

                // The pattern
                attribs = {
                    'd': path.d || path
                };
                if (!this.styledMode) {
                    attribs.stroke = path.stroke || color;
                    attribs['stroke-width'] = path.strokeWidth || 2;
                }
                this.createElement('path').attr(attribs).add(pattern);
                pattern.color = color;

            // Image pattern
            } else if (options.image) {
                if (animate) {
                    this.image(
                        options.image, 0, 0, width, height, function () {
                            // Onload
                            this.animate({
                                opacity: pick(options.opacity, 1)
                            }, animationOptions);
                            H.removeEvent(this.element, 'load');
                        }
                    ).attr({ opacity: 0 }).add(pattern);
                } else {
                    this.image(options.image, 0, 0, width, height).add(pattern);
                }
            }

            // For non-animated patterns, set opacity now
            if (!(options.image && animate) && options.opacity !== undefined) {
                [].forEach.call(pattern.element.childNodes, function (child) {
                    child.setAttribute('opacity', options.opacity);
                });
            }

            // Store for future reference
            this.patternElements = this.patternElements || {};
            this.patternElements[id] = pattern;

            return pattern;
        };


        // Make sure we have a series color
        wrap(H.Series.prototype, 'getColor', function (proceed) {
            var oldColor = this.options.color;

            // Temporarely remove color options to get defaults
            if (oldColor && oldColor.pattern && !oldColor.pattern.color) {
                delete this.options.color;
                // Get default
                proceed.apply(this, Array.prototype.slice.call(arguments, 1));
                // Replace with old, but add default color
                oldColor.pattern.color = this.color;
                this.color = this.options.color = oldColor;
            } else {
                // We have a color, no need to do anything special
                proceed.apply(this, Array.prototype.slice.call(arguments, 1));
            }
        });


        // Calculate pattern dimensions on points that have their own pattern.
        addEvent(H.Series, 'render', function () {
            var isResizing = this.chart.isResizing;

            if (this.isDirtyData || isResizing || !this.chart.hasRendered) {
                (this.points || []).forEach(function (point) {
                    var colorOptions = point.options && point.options.color;

                    if (colorOptions && colorOptions.pattern) {
                        // For most points we want to recalculate the dimensions on
                        // render, where we have the shape args and bbox. But if we
                        // are resizing and don't have the shape args, defer it, since
                        // the bounding box is still not resized.
                        if (
                            isResizing &&
                            !(
                                point.shapeArgs &&
                                point.shapeArgs.width &&
                                point.shapeArgs.height
                            )
                        ) {
                            colorOptions.pattern._width = 'defer';
                            colorOptions.pattern._height = 'defer';
                        } else {
                            point.calculatePatternDimensions(colorOptions.pattern);
                        }
                    }
                });
            }
        });


        // Merge series color options to points
        addEvent(H.Point, 'afterInit', function () {
            var point = this,
                colorOptions = point.options.color;

            // Only do this if we have defined a specific color on this point. Otherwise
            // we will end up trying to re-add the series color for each point.
            if (colorOptions && colorOptions.pattern) {
                // Move path definition to object, allows for merge with series path
                // definition
                if (typeof colorOptions.pattern.path === 'string') {
                    colorOptions.pattern.path = {
                        d: colorOptions.pattern.path
                    };
                }
                // Merge with series options
                point.color = point.options.color = merge(
                    point.series.options.color, colorOptions
                );
            }
        });


        // Add functionality to SVG renderer to handle patterns as complex colors
        H.addEvent(H.SVGRenderer, 'complexColor', function (args) {
            var color = args.args[0],
                prop = args.args[1],
                element = args.args[2],
                pattern = color.pattern,
                value = '#343434',
                forceHashId;

            // Skip and call default if there is no pattern
            if (!pattern) {
                return true;
            }

            // We have a pattern.
            if (
                pattern.image ||
                typeof pattern.path === 'string' ||
                pattern.path && pattern.path.d
            ) {
                // Real pattern. Add it and set the color value to be a reference.

                // Force Hash-based IDs for legend items, as they are drawn before
                // point render, meaning they are drawn before autocalculated image
                // width/heights. We don't want them to highjack the width/height for
                // this ID if it is defined by users.
                forceHashId = element.parentNode &&
                    element.parentNode.getAttribute('class');
                forceHashId = forceHashId &&
                    forceHashId.indexOf('highcharts-legend') > -1;

                // If we don't have a width/height yet, handle it. Try faking a point
                // and running the algorithm again.
                if (pattern._width === 'defer' || pattern._height === 'defer') {
                    H.Point.prototype.calculatePatternDimensions.call(
                        { graphic: { element: element } }, pattern
                    );
                }

                // If we don't have an explicit ID, compute a hash from the
                // definition and use that as the ID. This ensures that points with
                // the same pattern definition reuse existing pattern elements by
                // default. We combine two hashes, the second with an additional
                // preSeed algorithm, to minimize collision probability.
                if (forceHashId || !pattern.id) {
                    // Make a copy so we don't accidentally edit options when setting ID
                    pattern = merge({}, pattern);
                    pattern.id = 'highcharts-pattern-' + (this.chartIndex || 0) + '-' +
                        hashFromObject(pattern) + hashFromObject(pattern, true);
                }

                // Add it. This function does nothing if an element with this ID
                // already exists.
                this.addPattern(pattern, !this.forExport && H.pick(
                    pattern.animation,
                    this.globalAnimation,
                    { duration: 100 }
                ));

                value = 'url(' + this.url + '#' + pattern.id + ')';

            } else {
                // Not a full pattern definition, just add color
                value = pattern.color || value;
            }

            // Set the fill/stroke prop on the element
            element.setAttribute(prop, value);

            // Allow the color to be concatenated into tooltips formatters etc.
            color.toString = function () {
                return value;
            };

            // Skip default handler
            return false;
        });


        // When animation is used, we have to recalculate pattern dimensions after
        // resize, as the bounding boxes are not available until then.
        H.addEvent(H.Chart, 'endResize', function () {
            if (
                (this.renderer && this.renderer.defIds || []).filter(function (id) {
                    return id && id.indexOf && id.indexOf('highcharts-pattern-') === 0;
                }).length
            ) {
                // We have non-default patterns to fix. Find them by looping through
                // all points.
                this.series.forEach(function (series) {
                    series.points.forEach(function (point) {
                        var colorOptions = point.options && point.options.color;

                        if (colorOptions && colorOptions.pattern) {
                            colorOptions.pattern._width = 'defer';
                            colorOptions.pattern._height = 'defer';
                        }
                    });
                });
                // Redraw without animation
                this.redraw(false);
            }
        });


        // Add a garbage collector to delete old patterns with autogenerated hashes that
        // are no longer being referenced.
        H.addEvent(H.Chart, 'redraw', function () {
            var usedIds = [],
                renderer = this.renderer,
                // Get the autocomputed patterns - these are the ones we might delete
                patterns = (renderer.defIds || []).filter(function (pattern) {
                    return pattern.indexOf &&
                        pattern.indexOf('highcharts-pattern-') === 0;
                });

            if (patterns.length) {
                // Look through the DOM for usage of the patterns. This can be points,
                // series, tooltips etc.
                [].forEach.call(
                    this.renderTo.querySelectorAll(
                        '[color^="url(#"], [fill^="url(#"], [stroke^="url(#"]'
                    ),
                    function (node) {
                        var id = node.getAttribute('fill') ||
                                node.getAttribute('color') ||
                                node.getAttribute('stroke');

                        if (id) {
                            usedIds.push(
                                id
                                    .substring(id.indexOf('url(#') + 5)
                                    .replace(')', '')
                            );
                        }
                    }
                );

                // Loop through the patterns that exist and see if they are used
                patterns.forEach(function (id) {
                    if (usedIds.indexOf(id) === -1) {
                        // Remove id from used id list
                        erase(renderer.defIds, id);
                        // Remove pattern element
                        if (renderer.patternElements[id]) {
                            renderer.patternElements[id].destroy();
                            delete renderer.patternElements[id];
                        }
                    }
                });
            }
        });


        // Add the predefined patterns
        H.Chart.prototype.callbacks.push(function (chart) {
            var colors = H.getOptions().colors,
                index = chart.index,
                forExport = chart.options.chart.forExport;

            [
                'M 0 0 L 10 10 M 9 -1 L 11 1 M -1 9 L 1 11',
                'M 0 10 L 10 0 M -1 1 L 1 -1 M 9 11 L 11 9',
                'M 3 0 L 3 10 M 8 0 L 8 10',
                'M 0 3 L 10 3 M 0 8 L 10 8',
                'M 0 3 L 5 3 L 5 0 M 5 10 L 5 7 L 10 7',
                'M 3 3 L 8 3 L 8 8 L 3 8 Z',
                'M 5 5 m -4 0 a 4 4 0 1 1 8 0 a 4 4 0 1 1 -8 0',
                'M 10 3 L 5 3 L 5 0 M 5 10 L 5 7 L 0 7',
                'M 2 5 L 5 2 L 8 5 L 5 8 Z',
                'M 0 0 L 5 10 L 10 0'
            ].forEach(function (pattern, i) {
                chart.renderer.addPattern({
                    id: 'highcharts-default-pattern-' +
                        (index && !forExport ? index + '-' : '') + i,
                    path: pattern,
                    color: colors[i],
                    width: 10,
                    height: 10
                });
            });
        });

    });
    _registerModule(_modules, 'masters/modules/pattern-fill.src.js', [], function () {


    });
}));